Units recovery methods in compositional data analysis

Natural Resources Research
By: , and 



Compositional data carry relative information. Hence, their statistical analysis has to be performed on coordinates with respect to a log-ratio basis. Frequently, the modeler is required to back-transform the estimates obtained with the modeling to have them in the original units such as euros, kg or mg/liter. Approaches for recovering original units need to be formally introduced and its properties explored. Here, we formulate and analyze the properties of two procedures: a simple approach consisting of adding a residual part to the composition and an approach based on the use of an auxiliary variable. Both procedures are illustrated using a geochemical data set where the original units are recovered when spatial models are applied.

Publication type Article
Publication Subtype Journal Article
Title Units recovery methods in compositional data analysis
Series title Natural Resources Research
DOI 10.1007/s11053-020-09659-7
Volume 30
Year Published 2021
Language English
Publisher Springer
Contributing office(s) Eastern Energy Resources Science Center
Description 14 p.
First page 3045
Last page 3058
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